Note: The configurations below are stored in ROMMON, and cannot be reset to Factory Default Settings by the write erase or config-register 0x2142 commands. Once the router reloads, the System configuration Dialog appears. Reload the router with the reload command in enable mode. Issue the write memory command in enable mode to overwrite the existing start-up configuration with the current running configuration. router# reloadĪfter the router has reloaded, the System Configuration Dialog appears.Įnter no to the question "Would you like to enter initial configuration dialog?"Ĭhange the configuration register setting to 0x2102 by entering the config-register 0x2102 command once in global configuration mode. It is not necessary to save when prompted to save the system configuration. Reload the router using the reload command in enable mode. If a show version is issued, the last line in the command output will have ' (will be 0x2142 at next reload)' appended to the current configuration register setting. This causes the router to ignore the start-up configuration on the next reload. This method uses the config-register 0x2142 command in global configuration mode.Įnter the config-register 0x2142 command in global configuration mode.
The router is now reset to the original factory defaults. Would you like to enter the initial configuration dialog? : Once the router reloads, the System Configuration Dialog appears. When prompted to save the configuration, DO NOT save. Reload the router with the reload command. If the show version command is issued again, the same line in the command output will have ' (will be 0x2102 at next reload)' appended to the current register setting.Įrase the current start-up configuration on the router with the write erase command. If this is not the case, enter the config-register 0x2102 command once in global configuration mode. The configuration register setting is displayed in the last line of the show version command output and should be set to 0x2102. This method uses the config-register 0x2102 command in global configuration mode.Ĭheck the configuration register on the router by issuing the show version command. There are two main methods to return a Cisco router to its original factory defaults. Instructions to Reset a Cisco Router Back to Factory Defaults Conventionsįor more information on document conventions, refer to the Cisco Technical Tips Conventions. If your network is live, make sure that you understand the potential impact of any command. All of the devices used in this document started with a cleared (default) configuration. The information in this document was created from the devices in a specific lab environment.
This document is not restricted to specific software and hardware versions. Router# - Privileged EXEC mode Components Used In order to perform the procedures described in this document, you must have " enable" (also known as " privileged EXEC") access on the router.
This document describes how to restore a Cisco router to its original factory default settings.